:root {
  --ink: #111827;
  --muted: #5b6475;
  --line: #d8dee8;
  --paper: #fbfcff;
  --panel: #ffffff;
  --teal: #0f766e;
  --teal-strong: #115e59;
  --coral: #e15d44;
  --amber: #c47f12;
  --green: #16884a;
  --violet: #5b4fd8;
  --shadow: 0 24px 80px rgba(20, 34, 55, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    linear-gradient(120deg, rgba(15, 118, 110, 0.12), transparent 34%),
    linear-gradient(20deg, rgba(225, 93, 68, 0.12), transparent 42%),
    var(--paper);
}

button,
input {
  font: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

.page-shell {
  min-height: 100vh;
}

.hero {
  min-height: 82vh;
  padding: 24px clamp(18px, 4vw, 64px) 28px;
  display: flex;
  flex-direction: column;
}

.nav {
  width: min(1180px, 100%);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 8px;
  color: #fff;
  background: var(--ink);
  font-size: 13px;
}

.nav-cta,
.primary-button,
.ghost-button,
.idea-input-row button,
.form-row button {
  min-height: 44px;
  border-radius: 8px;
  border: 0;
  cursor: pointer;
  font-weight: 700;
}

.nav-cta {
  padding: 11px 16px;
  color: #fff;
  background: var(--teal);
}

.hero-grid {
  width: min(1180px, 100%);
  margin: auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.9fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
  padding: 34px 0 18px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--teal-strong);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 20px;
  max-width: 760px;
  font-size: clamp(2.8rem, 5.4vw, 4.25rem);
  line-height: 1;
  letter-spacing: 0;
}

.hero-subtitle {
  max-width: 660px;
  color: var(--muted);
  font-size: clamp(1.02rem, 1.6vw, 1.22rem);
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.primary-button,
.ghost-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 18px;
}

.primary-button {
  color: #fff;
  background: var(--ink);
}

.ghost-button {
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
}

.insight-console {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(17, 24, 39, 0.12);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: var(--shadow);
}

.console-topbar {
  display: flex;
  gap: 7px;
  padding: 11px 16px;
  border-bottom: 1px solid var(--line);
  background: #f5f8fc;
}

.console-topbar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--coral);
}

.console-topbar span:nth-child(2) {
  background: var(--amber);
}

.console-topbar span:nth-child(3) {
  background: var(--green);
}

.idea-card,
.data-panel {
  margin: 14px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.idea-card label,
.waitlist-form label {
  display: block;
  margin-bottom: 9px;
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 700;
}

.idea-input-row,
.form-row {
  display: flex;
  gap: 10px;
}

.idea-input-row input,
.form-row input {
  width: 100%;
  min-width: 0;
  min-height: 46px;
  padding: 0 13px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  background: #fbfcff;
}

.idea-input-row button,
.form-row button {
  flex: 0 0 auto;
  padding: 0 15px;
  color: #fff;
  background: var(--teal);
}

.signal-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  padding: 0 14px;
}

.metric {
  min-height: 100px;
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.metric span {
  display: block;
  min-height: 30px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.metric strong {
  display: block;
  margin-bottom: 10px;
  font-size: clamp(1.12rem, 2.4vw, 1.55rem);
}

.meter {
  overflow: hidden;
  height: 7px;
  border-radius: 999px;
  background: #e7edf4;
}

.meter span {
  display: block;
  height: 100%;
  min-height: 0;
  border-radius: inherit;
  background: var(--violet);
  transition: width 420ms ease;
}

.meter.amber span {
  background: var(--amber);
}

.meter.green span {
  background: var(--green);
}

.panel-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
  font-weight: 800;
}

.live-pill {
  padding: 5px 8px;
  border-radius: 999px;
  color: var(--teal-strong);
  background: rgba(15, 118, 110, 0.12);
  font-size: 0.75rem;
  white-space: nowrap;
}

.data-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.data-list li {
  padding: 10px 12px;
  border-radius: 8px;
  color: #2b3545;
  background: #f7f9fc;
  font-size: 0.93rem;
  transition: transform 180ms ease, background 180ms ease;
}

.data-list li.highlight {
  transform: translateX(4px);
  background: rgba(225, 93, 68, 0.12);
}

.audience-band,
.validation-section,
.waitlist-section {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
}

.audience-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  padding: 16px 0 80px;
}

.audience-card {
  min-height: 138px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  text-align: left;
  background: rgba(255, 255, 255, 0.72);
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.audience-card:hover,
.audience-card.active {
  transform: translateY(-4px);
  border-color: rgba(15, 118, 110, 0.55);
  box-shadow: 0 16px 40px rgba(20, 34, 55, 0.1);
}

.audience-card span {
  display: block;
  margin-bottom: 16px;
  color: var(--coral);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.audience-card strong {
  display: block;
  line-height: 1.35;
}

.validation-section {
  display: grid;
  grid-template-columns: 0.65fr 1fr;
  gap: clamp(30px, 5vw, 60px);
  padding: 74px 0;
  border-top: 1px solid var(--line);
}

h2 {
  margin-bottom: 0;
  font-size: clamp(2rem, 4.5vw, 3.7rem);
  line-height: 1;
  letter-spacing: 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.feature {
  min-height: 216px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 32px;
  margin-bottom: 28px;
  border-radius: 8px;
  color: #fff;
  background: var(--ink);
  font-size: 0.78rem;
  font-weight: 800;
}

.feature h3 {
  margin-bottom: 10px;
  font-size: 1.1rem;
}

.feature p,
.waitlist-copy p {
  color: var(--muted);
  line-height: 1.65;
}

.waitlist-section {
  display: grid;
  grid-template-columns: 0.8fr 1fr;
  gap: clamp(24px, 4vw, 52px);
  align-items: center;
  margin-bottom: 46px;
  padding: clamp(24px, 5vw, 44px);
  border: 1px solid rgba(17, 24, 39, 0.14);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
}

.waitlist-copy h2 {
  margin-bottom: 16px;
}

.waitlist-form {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f7f9fc;
}

.form-message {
  min-height: 24px;
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.form-message.success {
  color: var(--green);
}

.form-message.error {
  color: #b42318;
}

@media (max-width: 920px) {
  .hero {
    min-height: auto;
  }

  .hero-grid,
  .validation-section,
  .waitlist-section {
    grid-template-columns: 1fr;
  }

  .audience-band {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 620px) {
  .hero {
    padding-inline: 16px;
  }

  h1 {
    font-size: clamp(2.7rem, 15vw, 4.4rem);
  }

  .hero-actions,
  .idea-input-row,
  .form-row {
    flex-direction: column;
  }

  .signal-grid,
  .audience-band,
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .metric {
    min-height: 104px;
  }

  .nav-cta {
    display: none;
  }
}